No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.

Knowledge Base

FAQ-How to solve System is busy issue

Publication Date:  2012-07-25  |   Views:  750  |   Downloads:  0  |   Author:  Dusko Nikolic  |   Document ID:  EKB0000543345


Issue Description

In customer network we have MA5600T which have SCUB as control board and V800R006C02 software version. MA5600T is connected to the router with optical patch cord.
MA5600T( SCUB with optical uplink)----->Cisco 7600 router------> BRAS/HeadEnd/IMS

Q: On basic commands system output following info:

B-Vrsac-MAT-3(config)#display vlan all
{ |vlantype|vlanattr }:
display vlan all
Failure: System is busy, please retry after a while

Alarm Information


Handling Process

We can use DBWIN to solve problem ( to unlock deadlock module) if it is urgent :

1. Enable DBWIN on CLI

B-Vrsac-MAT-3su)%%dbwin enable
B-Vrsac-MAT-3(su)%%dbwin print 0x20 1

2. Get the PIDs in state P and release them
use "dbwin send 0x20 3" to get the problematic PID, for example:

B-Vrsac-MAT-3(su)%%dbwin send 0x20 3
{ |para2<0x...><0x0,0xffffffff> }:

dbwin send 0x20 3

[08:41:58.520]Send cmd to module 0x20.Cmd:0x3,SubCmd:0x0,Para1:0x0,Para2:0x0
[08:41:58.530] -?T: 0xae -P ////// PID is 0xae

Use following commands to release PID 0xae:

B-Vrsac-MAT-3(su)%%dbwin send 0x20 4 0xae
B-Vrsac-MAT-3su)%%dbwin send 0x20 5 0xae

3. Disable dbwin

B-Vrsac-MAT-3(su)%%dbwin print 0x20 0
B-Vrsac-MAT-3(su)%%dbwin disable

4. Test

B-Vrsac-MAT-3(config)#display vlan all


Root Cause